Home / 692,978.60-1,038,690.30-393,602.60

Finding the Fourth Proportional to 692,978.60, 1,038,690.30 and 393,602.60

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Solution

The fourth proportional to 692,978.60, 1,038,690.30 and 393,602.60 is: 589,962.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,978.60 : 1,038,690.30 = 393,602.60 : x
  2. Step 2: Convert to fraction form
    692,978.60/1,038,690.30 = 393,602.60/x
  3. Step 3: Cross multiply
    692,978.60x = 1,038,690.30 × 393,602.60
  4. Step 4: Simplify right side
    692,978.60x = 408,831,202,674.78
  5. Step 5: Solve for x
    x = 408,831,202,674.78/692,978.60
  6. Step 6: Final answer
    x = 589,962.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.